ASD closure device with self centering arm network

Inactive Publication Date: 2005-03-24
CARDIA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] The present invention provides an occluder with a self centering system that keeps the occluder properly centered in a defect. The self centering system allows the center of the occluder to remain properly positioned within the defect so that the left and right sides cover the entire defect, which reduces the chance of blood shunting through the defect and increases the effectiveness of the occluder. T

Problems solved by technology

This abnormal shunt can cause a variety of health problems.
Normally, permanently repairing certain cardiac defects in adults and children requires open heart surgery, which is a risky, painful, and expensive procedure.
If the occlusion device

Method used

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  • ASD closure device with self centering arm network
  • ASD closure device with self centering arm network
  • ASD closure device with self centering arm network

Examples

Experimental program
Comparison scheme
Effect test

Example

[0021]FIG. 1 is a perspective view of an occlusion device 10. The occlusion device 10 comprises a center post 12, a right set of arms 14, a left set of arms 16, individual wire arms 18 which make up the left and right sets 14, 16, end caps 20, a right sheet 22, a left sheet 24, and two wire hoops 26. The right set of arms14 is connected to the center post 12 and comprises the six wire arms 18 which are capped with the end caps 20. The hoops 26 surround the perimeter of the right and left sheets 22, 24 and pass through holes 28 in the end caps 20. A grasping knob 30 is located near the tip of the center post 12. Both sets of arms 14, 16 are located on the inner sides of the sheets 20, 22.

[0022] The sheets 22, 24 are connected to the device 10 at the hoops 26. The sheets 22, 24 may attach to the hoops 26 by folding each sheet 24, 26 over the perimeter of the hoop 26 and securing the sheets 22, 24 in place. A variety of securing methods may be used such as suturing, heat treating, or ...

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PUM

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Abstract

The present invention provides an occluder with a self centering system that keeps the occluder properly centered in a defect which allows the center of the occluder to remain properly positioned within the defect so that the left and right sides cover the entire defect which reduces the chance of blood shunting through the defect and increases the effectiveness of the occluder. The self centering system is comprised of a series of arms that provide tension to hold the right and left sides in place. The arms are shaped to provide a flexible intermediate zone comprising a left and a right conical shaped network, wherein each network extends from the right and left sides and narrows at the center section. The flexible intermediate zone centers the occluder and helps to hold it in place.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates to an occlusion device for the closure of physical apertures, such as vascular or septal apertures. More specifically, this invention relates to an occlusion device for the heart that centers itself in the defect to ensure that the defect is properly sealed. [0002] The heart is generally comprised of four chambers: the left and right atrium, and the left and right ventricle. Separating the left and right sides of the heart are two walls, or septa. The wall between the two atria is the interatrial septum, and the wall between the two ventricles is the interventricular septum. There are several defects which can affect the septa of both children and adults, including patent ductus arteriosus, patent foramen ovale, atrial septal defects (ASDs), and ventricular septal defects (VSDs). Although the causes and physical aspects of these defects vary by type, each of these defects is generally an aperture, flap, or hole, in the septum...

Claims

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Application Information

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IPC IPC(8): A61BA61B17/00A61B17/08
CPCA61B17/0057A61B2017/00575A61B2017/00592A61B2017/00867A61B2017/00619A61B2017/00836A61B2017/00606
Inventor MARINO, JOSEPH A.CORCORAN, MICHAEL P.
Owner CARDIA INC
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